AniDBmini.ImportWindow.OnClose C# (CSharp) Method

        private void OnClose(object sender, CancelEventArgs e)
        {
            if (isWorking)
            {
                closePending = true;

                if (MessageBox.Show("Are you sure?\nClosing this window will abort the import process.", "Confirm", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) != MessageBoxResult.Yes)
                {
                    closePending = false;
                    e.Cancel = true;
                    return;
                }
                else if (File.Exists(MylistDB.dbPath))
                {
                    m_myList.Close();
                    File.Delete(MylistDB.dbPath);
                }

                this.DialogResult = false;
            }
        }